#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<math.h>
int main()
{
	double w = 0;
	double h = 0;
	double BMI = 0;
	scanf("%lf%lf", &w, &h);
	h /= 100;
	BMI = w / pow(h, 2);
	printf("%.2lf", BMI);
	return 0;
}